@misc{indiciaea73ea66f2eec,
  title = {Spectrum Orbit Utilization Program documentation: SOUP5 version 3.8 user's manual, volume 1, chapters 1 through 5},
  author = {Davidson, J. and Ottey, H. R. and Sawitz, P. and Zusman, F. S.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19860018455},
  note = {Source identifier: 19860018455}
}